Пример #1
0
  /**
   * Remove this particular regex/subscriber pair (UNTESTED AND API MAY CHANGE). If regex is null,
   * all subscriptions for 'sub' are cancelled. If subscriber is null, any previous subscriptions
   * matching the regular expression will be cancelled. If both 'sub' and 'regex' are null, all
   * subscriptions will be cancelled.
   */
  public void unsubscribe(String regex, ZCMSubscriber sub) {
    if (this.closed) throw new IllegalStateException();

    synchronized (this) {
      for (Provider p : providers) p.unsubscribe(regex);
    }

    // TODO: providers don't seem to use anything beyond first channel

    synchronized (subscriptions) {

      // Find and remove subscriber from list
      for (Iterator<SubscriptionRecord> it = subscriptions.iterator(); it.hasNext(); ) {
        SubscriptionRecord sr = it.next();

        if ((sub == null || sr.lcsub == sub) && (regex == null || sr.regex.equals(regex))) {
          it.remove();
        }
      }

      // Find and remove subscriber from map
      for (String channel : subscriptionsMap.keySet()) {
        for (Iterator<SubscriptionRecord> it = subscriptionsMap.get(channel).iterator();
            it.hasNext(); ) {
          SubscriptionRecord sr = it.next();

          if ((sub == null || sr.lcsub == sub) && (regex == null || sr.regex.equals(regex))) {
            it.remove();
          }
        }
      }
    }
  }
Пример #2
0
 /**
  * Call this function to release all resources used by the ZCM instance. After calling this
  * function, the ZCM instance should consume no resources, and cannot be used to receive or
  * transmit messages.
  */
 public synchronized void close() {
   if (this.closed) throw new IllegalStateException();
   for (Provider p : providers) {
     p.close();
   }
   providers = null;
   this.closed = true;
 }